form of a rigid unit [g c- / ] (class /dig ) fuel units consisting of a single fuel element in a supporting sleeve or in another supporting element [g c- / ] (class /dig ) structural combination of fuel element with thermoelectric element for direct production of electric energy from fission heat; or...
made calculators that did those same things over and over. this part of computer history is called the "history of automated calculation," which is a fancy phrase for "the history of machines that make it easy for me to do this same math problem over and over without making mistakes." the abacus , the...
an event; totalizers (class / ) game or sport (class / ) counting animate or inanimate entities (class / ) registering counts for different categories (e.g., accounting) (class / ) counting based on number of times machine or apparatus operates (class / ) determining machine or apparatus operating time...
ray tube (crt), computer terminal change making machines coin counters computer auxiliary storage units computer cleaning computer disk and drum drives and components computer maintenance and repair, nec computer output to microfilm units computer peripheral equipment computer peripheral equipment repairs...
ray tube (crt), computer terminal change making machines coin counters computer auxiliary storage units computer cleaning computer disk and drum drives and components computer maintenance and repair, nec computer output to microfilm units computer peripheral equipment computer peripheral equipment repairs...
motor vehicles & parts bicycles not motorized other transport equipment aircrafts & parts other engineering products metal furniture & seats fish & fisheries products edible fish products frozen fish fish fresh or chilled other edible fish seafood shrimps and prawns lobsters crabs food, feed & beverages...
motor vehicles & parts bicycles not motorized other transport equipment aircrafts & parts other engineering products metal furniture & seats fish & fisheries products edible fish products frozen fish fish fresh or chilled other edible fish seafood shrimps and prawns lobsters crabs food, feed & beverages...
ten plates behind a numeric aperture mask. unlike nixies, this one seems to have a common cathode and ten anode connections - sounds odd but this is the only way i could get this tube to display properly. markings worn off - probably made by valvo. info on burroughs pixie tube . dekatron counter tubes...